I tweeted a tweet about two companies that went viral, went very very viral and made a lot of headline news. And honestly, I didn't anticipate that my comments would be interpreted in the way they were interpreted.

I thought I was speaking to a relatively small number of people who followed me, a developer-oriented group, and instead it went mainstream. And so, uhm, I've curtailed my usage since then.

Page probably didn't want any undue stress or attention brought to Google by a snarky comment from Gundotra, so he asked him to stop tweeting. It might sound controversial, but it's pretty normal for a big company.